package t25524;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Scanner;

public class LoginDemo {
    public static void main(String[] args) throws ClassNotFoundException, SQLException {
        Connection connection = SqlConnection.getConnection();
        Scanner scanner = new Scanner(System.in);
        System.out.print("请输入用户名");
        String username = scanner.next();
        System.out.print("请输入密码");
        String password = scanner.next();
        String sql = "select * from users where username = ? and password = ?";
        PreparedStatement preparedStatement = connection.prepareStatement(sql);
        preparedStatement.setString(1, username);
        preparedStatement.setString(2, password);
        ResultSet resultSet = preparedStatement.executeQuery();
        if (resultSet.next()) {
            System.out.println("登录成功");
        } else {
            System.out.println("登录失败");
        }

    }
}
